189911202011 has 8 divisors (see below), whose sum is σ = 191175098400. Its totient is φ = 188651085120.

The previous prime is 189911201957. The next prime is 189911202023. The reversal of 189911202011 is 110202119981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189911202011 - 2⁶ = 189911201947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189901202011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844010 + ... + 1045071.

It is an arithmetic number, because the mean of its divisors is an integer number (23896887300).

Almost surely, 2^189911202011 is an apocalyptic number.

189911202011 is a deficient number, since it is larger than the sum of its proper divisors (1263896389).

189911202011 is a wasteful number, since it uses less digits than its factorization.

189911202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889749.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 189911202011 in words is "one hundred eighty-nine billion, nine hundred eleven million, two hundred two thousand, eleven".